Sentence examples for gas bladder from inspiring English sources
noun
An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density.
When the buccal cavity of the garfish is contracted during holding prey, the muscles of the gas bladder wall and tunica muscularis, located inside and outside the glottal ridge, participate in exhalation.
There is considerable controversy in the literature regarding the existence of a "longitudinal slit" versus a "duct" connecting the respiratory gas bladder with the alimentary tract in various species of garfishes (Lepisosteidae).
Large numbers of the Portuguese man-of-war (Physalia), with its conspicuous gas bladder, the by-the-wind-sailor (Velella velella), and the small blue disk-shaped Porpita porpita are propelled along the surface by the wind, and after strong onshore winds they may be found strewn on the beach.
As mentioned previously, the gas bladder originated in the ancestor of bony fishes.
Fortunately, we have evidence from basal ray-finned fishes that the gas bladder originally served both functions and has since been modified along two different trajectories.
In teleost fishes, gills have assumed all the burden of respiration, while the gas bladder has been sealed off from the gut and now functions in buoyancy.
They typically feature a large, rootlike holdfast for attachment to the ocean floor, a stipe (primary stem) for the internal transport of organic material, and long branching stalks with blades that stay afloat by means of pneumatocysts (gas bladders).
In order for this to happen, there must have been individuals who already had slight modifications that allowed evolution to begin transforming gas bladders into lungs and fins into limbs.
Hide glue or gelatin made from fish gas bladders is used to attach layers of sinew to the back of the bow, and to attach the horn belly to the wooden core.
The gas bladders, oscillating in a sound field, then transmit energy to the inner ear endolymph, which again results in movement of the otolith relative to the sensory epithelium.
Furthermore, because cichlids have physoclistous gas bladders, adult fish have limited tolerance for rapid change in water pressure [ 21], suggesting that few individuals would survive a rapid upward transport from depth through entrainment in dynamic vertically upwelling waters.
